// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
#ifndef __GREYSCALE_LUMINANCE_SOURCE__
#define __GREYSCALE_LUMINANCE_SOURCE__
/*
 *  GreyscaleLuminanceSource.h
 *  zxing
 *
 *  Copyright 2010 ZXing authors All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <zxing/LuminanceSource.h>

namespace zxing {

    class GreyscaleLuminanceSource : public LuminanceSource {

    private:
        typedef LuminanceSource Super;
        ArrayRef<char> greyData_;
        const int dataWidth_;
        const int dataHeight_;
        const int left_;
        const int top_;

    public:
        GreyscaleLuminanceSource(ArrayRef<char> greyData, int dataWidth, int dataHeight, int left,
                                 int top, int width, int height);

        ArrayRef<char> getRow(int y, ArrayRef<char> row) const;

        ArrayRef<char> getMatrix() const;

        bool isRotateSupported() const {
            return true;
        }

        Ref<LuminanceSource> rotateCounterClockwise() const;
    };

}

#endif
